Evidence map›Paper›PMID 27606349›Full record

ArticleMolecular therapy. Methods & clinical development2016

Retinal pigment epithelial cell expression of active Rap 1a by scAAV2 inhibits choroidal neovascularization.

Haibo Wang, Xiaokun Han, Colin A Bretz, Silke Becker, Deeksha Gambhir, George W Smith, R Jude Samulski, Erika S Wittchen, Lawrence A Quilliam, Magdalena Chrzanowska-Wodnicka and 1 more

Open access · goldAbstract read
In one paragraph

Article in Molecular therapy. Methods & clinical development, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.0field-weighted citation impact, top 21% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Active Rap1-mediated inhibition of choroidal neovascularization requires interactions with IQGAP1 in choroidal endothelial cells.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2021
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 5 institutions in 2 countries.

Haibo WangThe John Moran Eye Center, University of Utah , Salt Lake City, Utah, USA.
Xiaokun HanThe John Moran Eye Center, University of Utah, Salt Lake City, Utah, USA; Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, Eye Hospital of China Medical University, Key Lens Research Laboratory of Liaoning Province, Shenyang, P.R. China.
Colin A BretzThe John Moran Eye Center, University of Utah , Salt Lake City, Utah, USA.
Silke BeckerThe John Moran Eye Center, University of Utah , Salt Lake City, Utah, USA.
Deeksha GambhirThe John Moran Eye Center, University of Utah , Salt Lake City, Utah, USA.
George W SmithThe John Moran Eye Center, University of Utah , Salt Lake City, Utah, USA.
R Jude SamulskiUNC Vector Core, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina, USA.
Erika S WittchenDepartment of Cell Biology and Physiology, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina, USA.
Lawrence A QuilliamDepartment of Biochemistry and Molecular Biology, Indiana University School of Medicine , Indianapolis, Indiana, USA.
Magdalena Chrzanowska-WodnickaBlood Research Institute, Blood Center of Wisconsin , Milwaukee, Wisconsin, USA.
M Elizabeth HartnettThe John Moran Eye Center, University of Utah , Salt Lake City, Utah, USA.
University of Utah · USUniversity of North Carolina at Chapel Hill · USFourth Affiliated Hospital of China Medical University · CNIndiana University School of MedicineVersiti Blood Center of Wisconsin · US

Funding

University of Utah, Core Vision Research GrantP30EY014800 · NEI · UTAH STATE HIGHER EDUCATION SYSTEM--UNIVERSITY OF UTAH · PI Bryan William Jones · 2005 to 2026
$14.6M
Endothelial Transmigration in Neovascular Age-related Macular DegenerationR01EY017011 · NEI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI HARTNETT, MARY ELIZABETH RUTH · 2007 to 2025
$7.7M
Mechanisms of Angiogenesis of Retinopathy of PrematurityR01EY015130 · NEI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Mary Elizabeth Ruth Hartnett · 2005 to 2026
$7.6M
Rap1 in VEGF signaling in endothelial cellsR01HL111582 · NHLBI · VERSITI WISCONSIN, INC. · PI CHRZANOWSKA, MAGDALENA · 2012 to 2019
$3.3M
NEI NIH HHS P30 EY014800NEI NIH HHS R01 EY015130NEI NIH HHS R01 EY017011NHLBI NIH HHS R01 HL111582
6 · The paper itself

Abstract

To test the hypothesis that increased Rap1a activity specifically in retinal pigment epithelial cells resists choroidal neovascularization (CNV), self-complementary adeno-associated virus 2 (scAAV2) with RPE65-promoter-driven GFP vectors were generated and introduced subretinally into Rap1b-deficient mice. Six-week-old mice that received subretinal control (scAAV2-Con) or constitutively active Rap1a (scAAV2-CARap1a) showed strong GFP at the 5 × 10(8) viral particle/µl dose 5 weeks later without altering retinal morphology or function. Compared to scAAV2-Con- or phosphate-buffered saline (PBS)-injected, eyes injected with scAAV2-CARap1a had increased Rap1 in retinal pigment epithelial (RPE)/choroidal lysates and a significant reduction in CNV volume 7 days after laser, comparable to eyes that received intravitreal anti-VEGF versus IgG control. scAAV2-CARap1a-, but not anti-VEGF-, injected eyes had increased pan-cadherin in RPE/choroids. In cultured RPE cells, increased active Rap1a inhibited TNFα-induced disassociation of junctional pan-cadherin/β-catenin complexes, increased transepithelial electrical resistance through an interaction of β-catenin with phosphorylated scaffold protein, IQGAP1, and inhibited choroidal endothelial cell (CEC) transmigration of an RPE monolayer. This evidence shows that increased Rap1a activity specifically in RPE cells is sufficient to reduce CEC transmigration and CNV and involves IQGAP1-mediated protection of RPE junctional complexes.

Identifiers

PMID27606349
PMCPMC4996131
OpenAlexW2513337606

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.